▎ 摘　　要

Recently, considerable work has been performed to explore the potential of graphene-based materials for various membrane applications. Graphene oxide (GO) membranes have shown excellent performance in gas and liquid separations. The transport phenomena and microstructures of GO membranes are some interesting fundamentals in GO membranes. In this article, we highlight the milestones achieved by GO membranes and briefly discuss some fundamental understandings of the membranes in fluid separations. The challenges and prospects of GO membranes for scale-up applications will also be presented.